Fill in the blanks 5+7= ,8+(-3)=,100+(-80)=, 3-7=,80-(-50)=,3×(-1)=,9×(-3)×(-6)=, (-20)×(-10),50÷0=, 0÷1,
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Step-by-step explanation:
5+7 =12
8+(-3)=5
100+(-80)=20
3-7= -4
80-(-50)=130
3×(-1)= -3
9×(-3)×(-6)=162
(-20)×(-10)= - 200
50÷0= 0
0÷1= undefined
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